[GPU Computing] GPCBenchmark OpenCL Benchmark

Here is a new rough-and-ready GPU computing tool that comes to us from China. GPCBenchmark is an OpenCL based benchmark that evaluates the performance of OpenCL capable devices with a collection tests: global and local memory bandwidth, single and double precision floating point performance, common mathematics operations (256×256 matrix multiplcation – ouch!), image processing and encryption (SHA-1).